Sewing-machine supporting and driving device



Sept. 23, 1924. 1,509,483

A. POPPER ET AL SEWING MACHINE SUPPORTING AND DRIVING DEVICE Filed July16. 192] Patented Sept. 23, 1924.

UNITED STATES PATENT OFFICE.

ANTON POZEPER AND 133301 61115 ADELHDFER, OF NEW YORK, N. Y.

sEwine-MAci-nivn surroamrno AND nnivrne DEVICE.

Application. filcd July 16,

To aZZ whom it may concern Be it known that we, ANTON Porrnn andlinoroiin Annnnornn, citizens of the United States and Hungary,respectively, and residents ot the city of New York, in the county ofNew York and State of New York, have invented certain new and usefulImprovements in sieving-Machine Supporting and Driving Devices, of whichthe tollowng is a specification.

The present invention relates to a device for su} )porting and drivingsewing mach nes.

Machines for operating on hats and other articles which are adapted tobe placed over the front end of the machine head dur'ng the s'eu-in'goperation must be supportedin sac-l1 position in relation to the worktable to permit of a conve ient handling of the work during the sewingoperatiom It has been proposed heretofore to use ordinary or low'basesewing machines for this class of "work, by mounting the same upon asupport on the maclrne table, said support carrying a driven shaft forengagement with the machine on the support. Ditticulties have beenexperienced with this construction for the reason that the clutch memberof the driven shaft does not fitall makes and types of sewing-machines,the result being that the support is limited in its use.

The main object of the present invention is to so construct the supportthat it may be associated with all types of sewing-machines and alsowith different makes, thereby rendering its use universal.

Another object of the invention is to produce a support of the charactermentioned which is simple in construction, eliicient in operation andcapable of manufacture on a commercial scale, or in other words onewhich is not so diflicult to makeas to be beyond the reasonable cost ofsuch a contrivance.

lVith these and other objects in View, which will more fully appear asthe nature of the invention is better understood, the same consists inthe combination, arrangement and construction of parts hereinafterdescribed, pointed out in the appended claims and illustrated in theaccompanying drawings, it being understood that many changes may be madein the size and proportion of the several parts and details of construction withn the scope of the appended 1921. Serial No. 485,158.

claim, without departing from the spirit or sacrificing any of theadvantages of the invention.

One of the many possible embodiments of the invention is illustrated inthe accompanying drawings, in which Figure 1 is a front elevation of asewing-machine mounted on a supporting device constructed in accordancewith the present invention; and Fig. 2 is a section taken on line 2-2 ofFig. 1.

In the drawings the numeral 10 indicates a sewing-machine table,provided with an opening 11 of a size to permit of a convenient handlimof the work being sewn on the machine adjacent the same. Thesewingmachine head, denoted by the numeral 12, is detachably mounted, ina manner hereinafter to be described, on a support 13, the latter bengfixed in any suitable manner to the table 10. The support comprises abase 14 of any suitable construction, from which rises a sewing-machinesupporting bed 15. This bed projects laterally on one side beyond thebase 14 over the opening 11, so as to support the machine in anoverhanging position above said opening, whereby an unobstructed spacemay be prov'ded for the manipulation of the work on the machine.

In the longitudinal center line of the supporting bed 143 there isformed a. row of holes 16, into one of which fits a lug 17, projectingdown from the undert'ace of the base 18 of the sewing-machine head,while through another one of these holes extends a screw-threaded bolt19 on the sewing-machine head. With the threads 01' this bolt mesh thoseof a nut 20, that abuts against the undert'ace of the bed 15, as clearlyshown in Fig. 1 of the drawings. There are more than two holes providedin the bed 15 to permit the mounting thereon of sewing-machine heads ofdiiterent kinds and sizes.

On the support 13 are provded two bearings 21, said bearings being inalignment and disposed in the longitudinal axis or the base of the saidsupport. In these bearings is rotatably mounted a counter-shaft 22, towhich are fixed two pulleys, denoted by the numerals 23 and 2 1. Thesepulleys are ad justablelongitudinally on the said shaft, set-screws 23serving to hold the same in any adjusted position. To permit theset-screws to properly grip the shaft, the latter is somejustablelongitudinally on the said counter 'what flattened longitudinally at theplaces indicated by the numerals 26 and 27, the set-screw of the pulley23 co-operating with the flattened section 26 of the shaft and theset-screw of the pulley 24: with the flattened section 27 thereof. Thepulley 23 is mounted in alignment with the pulley 28 of the machinehead, a belt 29 running over the pulleys 23 and 28. The pulley 24, onthe other hand, is mounted in alignment with a power transmitter 30 ofany suitable type,

depending from the underface of the table 10. Over this powertransmitter and the pulley 24 runs a belt 31. The power transmitterincludes a stepped-pulley, and it is for this reason that the pulley 24must be adjust-ably mounted upon the counter shaft 22,'the latter beingdriven at various speeds according to the type oi the machine operatedthereby. e

, Inasmuch as all sewing-machine heads are provided with a driven pulley28 and since the pulley 23 on the counter shaft 22 is adat a speeddifferent from that of the one that had been previously mounted on thesupporting bed 15.

What we claim is The combination with a work table, of a support thereoncomprising' a base and a bed rising from said base laterally projectingtherefrom, said bed being provided with a plurality of holes arranged ina row, a sewing machine head on said lied including a driven pulley, alug projecting down from the base of said sewing machine head into oneof said holes, a. screw-threaded bolt on said sewing machine headextending through another one of said holes, whereby the position ofsaid sewing machine head on said bed may be varied, a counter-shaftrotatably mounted on said support above its base, a pulley on saidcounter-shaft in alignment with said driven pulley, a belt running oversaid pulleys, a second pulley on said countershaft, a power transmitterincluding a pulley depending from the underface of said table, a beltrunning over the second pulley on the counter-shaft and the pulley onsaid transmitter, the shaft of said driven pulley and the shaft of saidpower transmitter pulley extending in parallel relation to saidcounter-shaft, both. pulleys on said counter-shaft being adjustablelongitudinally thereon.

Signed at New York. in the county of New York and State of New York,this 7th day of June, A. I). 1,921,.

ANTON POPPER. LEOIOLI) ADELH )Fltli,

